Synonyms: Amphiloma languinosum; Amphiloma lanuginosum; Crocynia brevieri; Crocynia languinosa; Crocynia lanuginosa; Crocynia lanuginosa f. imbricata; Crocynia lanuginosa var. albescens; Crocynia lanuginosa var. inactiva; Crocynia lanuginosa var. membranacea; Crocynia membranacea; Crocynia membranacea var. albescens; Crocynia membranacea var. granulosa; Dictyolus membranaceus; Imbricaria lanuginosa; Lecanora lanuginosa; Leproloma lanuginosum; Leproloma membranaceum; Leprolomma membranacea var. inactiva; Lichen lanuginosus (heterotypic); Lichen membranaceus; Pannaria lanuginosa (heterotypic); Parmelia caperata var. membranacea; Parmelia lanuginosa; Parmelia lanuginosa var. granulosa; Psoroma lanuginosum; Zeora lanuginosa; Zeora lanuginosa var. leprosa (homotypic)